My 3 yrs old Isa brown chicken has been sick for a number of weeks (just diagnosed with salpingitis) iand has become extremely underwiegtht before I noticed she wasn't eating her grain. For the last 10 days I've been feeding her various specially prepared treats but she eats more some days than others (its weird cause each day she has a preferencce for a different food). Yesterday she went to bed with a fairly full crop but today I can hardly feel it so I've bought some insectivore mix and would like to syringe some as I've just started her on anitbiotics today to try to give her a chance to live a little longer. Any advice on how much to give her, or if I even should 'force feed' her would be greatly appreciated.